How many bytes does a 20 GB hard drive have?

A 20GB hard drive represents a capacity of approximately 20 billion bytes. GB, also called gigabyte, is a decimal unit of information measurement; byte is a unit of measurement used in computer information technology to measure storage capacity, and can be abbreviated as "B". The conversion relationship between gb and bytes: 1gb is equal to 1024MB, 1MB is equal to 1024KB, and 1KB is equal to 1024B; therefore 20GB=20*1024MB=20*1024*1024KB=20*1024*1024*1024B=21474836480B.

The operating environment of this tutorial: Windows 7 system, Dell G3 computer.

A 20gb hard drive represents a capacity of approximately 20 billion bytes.According to the conversion formula 20GB=20*1024MB=20*1024*1024KB=20*1024*1024*1024B=21474836480B, we can know the capacity of the 20GB hard drive.

GB (computer storage unit)

gb is also called gigabyte (GB, Gigabyte, also known as gigabyte, gigabyte, Gigabyte, gigabyte, gigabyte), often abbreviated as G, is a decimal unit of information measurement. Gigabyte is often confused with Gibibyte, the binary unit of information measurement. It is often used to indicate the storage capacity of computer hard drives, memories and other storage media with larger capacities.

Byte (B)

Byte (Byte) is a unit of measurement used by computer information technology to measure storage capacity. It also means that in some computer programming languages data types and language characters.

One byte stores an 8-bit unsigned number, and the stored value range is 0-255. Like characters, byte type variables only require one byte (8 bits) of memory space to store.

Byte is the unit of binary data. A byte is usually 8 bits long. However, some older computer architectures use different lengths. To avoid confusion, in most international literature the word byte is used instead of byte. In most computer systems, a byte is an 8-bit unit of data. Most computers use a byte to represent a character, number, or other character. A byte can also represent a series of binary bits. In some computer systems, 4 bytes represent a word, which is the unit of data that the computer can efficiently process when executing instructions. Some language descriptions require 2 bytes to represent a character, which is called a double-byte character set. Some processors are capable of handling double-byte or single-byte instructions. Bytes are often abbreviated as "B" and bits are often abbreviated as a lowercase "b". The size of computer memory is usually expressed in bytes.

Conversion of GB and bytes (B)

1gb=1024MB, 1MB=1024KB, 1KB=1024B

• 1GB = 1024MB

• ##1GB = 1048576KB

• 1GB = 1073741824B

Expand knowledge :

In order to make the calculation and definition of hard disk size easier, hard disk manufacturers usually calculate in decimal places: 1KB=1000Byte, 1MB=1000KB, 1GB=1000MB, 1TB=1000GB, operating system Medium: 1KB=1024Byte, 1MB=1024KB, 1GB=1024MB, 1TB=1024GB.

The basic unit of computer storage capacity is bytes. Byte is a unit of measurement used by computer information technology to measure storage capacity and transmission capacity. One byte is equal to an 8-bit binary. The most commonly used unit of hard disk is GB. In addition to GB, larger hard disk space is expressed in TB. However, in Windows systems, the word "GB" is still used to represent the "GiB" unit (converted to 1024), so the capacity we see in the BIOS or when formatting the hard drive will be smaller than the manufacturer's nominal value.

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